| Title |
Experimental and Computational Fluid Dynamics (CFD) Methods to Analyze Particle Resuspension and Dispersion in Buildings |
| Authors |
Choi, Dong-Hee ; Kang, Dong-Hwa |
| Keywords |
Indoor particle ; Resuspension ; Dispersion ; Chamber experiment ; Computational Fluid Mechanics(CFD) |
| Abstract |
The objective of the study is to develop methodology to evaluate particle resuspension and dispersion in building environment. Experimental chamber system to measure particle resuspension rates from reservoir materials was suggested. The resuspension chamber was designed to provide both aerodynamic disturbance and mechanical disturbance to cause particle resuspension. The particle disperser chamber system was also suggested for preparation of dust loaded reservoirs. The results from the chamber experiment showed that the resuspension chamber system can characterize resuspension rates of quartz from stainless steel plate, carpet and linoleum. It also showed that particle resuspension rates differ from reservoir materials to materials. For evaluation of indoor particle dispersion, computational fluid dynamics (CFD) technique based on Lagrangian method was suggested. The CFD model was validated by comparing the simulated results with the experimental data including the distribution of indoor particle concentration |